Oil-burning apparatus



April 1, 1930. 5, GRANT 1,753,146

' OIL BVURNINQ APPARATUS Filed March 15, 1928 INVENTOR A/berf E. Gran ATTORNE Patented Apr. 1, 1930 UNITED STATES PATENT OFFICE ALBERT E. GRANT, OF NEW YORK, Y., ASSIGNOR TO GRANT HEAT MACHINE COR- PORATION, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

OIL-BURNING APPARATUS Application filed March 15, 1928. Serial No. 261,740.

My invention relates to oil burners.

The object of my invention is to provide an improved burner head so constructed that the oil fed to the chamber formed in the head,

cannot overflow into the air conduit which leads from the blower to the oil chamber formed in the head.

A further object is to provide a head having wicks formed of porous refractory ma-- terial thru which the oil passes on its way to the oil burnin chamber.

A further 0 ject is to provide a more simple and less expensive construction than that heretofore made, and that can be made as a separate article of manufacture to be psed in any system employing a blower for supplying air, and means for supplying oil, and

means for maintaining oil at the desired level in the burner head.

Referring-to the drawings which form a part of this specification.

Fig. 1 is a front, elevational view of an oil burning construction in which my burner head is shown. I a

Fig. 2 is a vertical sectional view of my improved burner head.

Fig. 3 is a plan view of the head.

A, A,indicate vertical supports on which is mounted a tank or reservoir -B for 30 holding a limited supply of oil, and C indicates a blower which is suspended from the under side of the reservoir B, and dis charges air thru a conduit -C into an air chamber D formed in the casing D.

I prefer to make the casing -'-D- and chamber -E integralas shown, although the head portion comprising the chamber E- could be made as a separate casting if desired, by making a joint on the line 4-4, as will be readily understood.

The casing D- is supported by a pedestal F, the upper 'end of which is screwed or otherwise fastened to the under side of'the casing D as illustrated, to hold the chamber E, at the proper height relative to the reservoir B. Formed integral with the chamber E is an upwardly extending tubular portion E which reduced in diameter relative to that of the conduit D and its upper end terentire periphery of the cap. The cap H is spaced from the outer wall of the tubular portion E to form an annular passage J for air leading from the conduit D through the passages I into the chamber E near the bottom thereof as illustrated.

A rod K extends from the lower end of the casing D through the centre thereof upward thru the cap H, and a nut L holds the cap firmly in osition. By removing this nut, the cap may e freely removed for cleaning or inspection.

MMM respectively indicate low flame wicks or burners made of refractory porous material, which are mounted in sockets M formed in the burner head, and are supplied with oil from the reservoir B by pipes N N and N which lead the oil into a chamber 0,

formed in the burner head, and the oil passes thru the passages 0 and thru the refractory material M into the chamber E. The oil is maintained at a level in the chamber E, on the line 55 which is practically level with I the tops of the small flame burners MM etc. and with the bottom edges of the air passages II etc. The dotted line 6 indicates the highest oil level that can. be reached in the reservoir B. Therefore since the tube E extends above this level, no 'oil could overflow from the chamber E into the conduit D since the oil flows by gravity from the reservoir B into the chamber E, and will rest in said chamber at the, same height or level as it is maintained in said reservoir B.

The general operation and constructions of 5 parts used in the oil burning systems of this character is well known to this art, and description of the means used to maintain the oil level in the reservoir B is therefore deemed unnecessary. 1

Having thus described my invention 1 claim as new:

1. A burner-head. of the character described comprising a casing having a central passage for air extending to the top thereof, and having an uncovered annular chamber for oil surrounding said passage, the top edge of which is located in alignment with the upper end of said air passage, a cap covering said central passage the inner sides of which contribute to form an annular passage for air leading to said annular chamber near the lower end thereof; said construction embodying a passage for oil leading to said annular chamber.

2. A burner-head of the character described comprising a casing having a central passage for air extending to the top thereof, and having an uncovered annular combustion signature.

ALBERT E. GRANT.

chamber for oil surrounding said passage, the

top edge of which is located in alignment with the upper end of said air passage, a cap covering said central passage the inner sides of which contribute to form an annular passage for air leading to said annular chamber near the lower end thereof; said construction embodying a passage for oil leading to said annular chamber, and a wick of porous heat refractory material located in said passage thru which the oil must pass.

3. A burner-head of the character describedcomprising a casing having a central passage for air extending to the top thereof, and having an uncovered annular combustion chamber for oil surrounding said passage, the

top edge of which is located in alignment with the upper end of said air passage, a cap covering said central passage the inner sides of which contribute to form an annular passage for air leading to said annular chamber near the lower end thereof; said construction embodying a plurality of oil passages leading thru the bottom of said annular chamber into same, and porous heat-refractory material thru which the oil must pass located in said passages to serve as wicks and serving to prevent sudden excessive quantity of oil from flowing into said combustion chamber.

i. A burner-head of the character described, comprising a casing having a tubeshaped upper end and an uncovered combustion chamber encircling the same and formed integral therewith, an inverted cup-shaped cap covering said tube-shaped end and spaced therefrom to form an annular air conduit,

and having its rim resting on the bottom of said chamber and provided with a number of small air passages leading to said chamber, and means for leading oil to said chamber.

5. A burner-head of the character described, comprising a casing having a tubeshaped upper end and an open combustion chamber encircling the same and formed integral therewith, an inverted cu -shaped cap covering said tube-shaped en and spaced 

